expand (x + 2y -2)^2
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please Mark it as a brainlist
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jagjitkaur13:
i don't know how to mark as brainliest
can u answer this again
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(x + 2y - 2)^2
Step-by-step explanation:
as (a + b + c)^2 = a^2 + b^2 + c^2 + 2ab + 2bc + 2ac.
similarly
(x + 2y - 2)^2 = x^2 + 4y^2 + 4 + 4xy - 8y - 4x.
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